eugenp

@Test
public void whenFirstPageOfResourcesAreRetrieved_thenSecondPageIsNext(){
   Response response = givenAuth().get( paths.getFooURL()+"?page=0&size=10" );

   String uriToNextPage = extractURIByRel( response.getHeader( LINK ), REL_NEXT );
   assertEquals( paths.getFooURL()+"?page=1&size=10", uriToNextPage );
}
@Test
public void whenFirstPageOfResourcesAreRetrieved_thenNoPreviousPage(){
   Response response = givenAuth().get( paths.getFooURL()+"?page=0&size=10" );

eugenp

package org.baeldung.web.hateoas;

import javax.servlet.http.HttpServletResponse;

import org.springframework.context.ApplicationListener;
import org.springframework.stereotype.Component;
import org.springframework.web.util.UriComponentsBuilder;

import com.google.common.base.Preconditions;

eugenp

void addLinkHeaderOnPagedResourceRetrieval( 
 UriComponentsBuilder uriBuilder, HttpServletResponse response, 
 Class clazz, int page, int totalPages, int size ){
   
   String resourceName = clazz.getSimpleName().toString().toLowerCase();
   uriBuilder.path( "/admin/" + resourceName );
   
   StringBuilder linkHeader = new StringBuilder();
   if( hasNextPage( page, totalPages ) ){
      String uriNextPage = constructNextPageUri( uriBuilder, page, size );

eugenp

@RequestMapping( value = "admin/foo",params = { "page", "size" },method = GET )
@ResponseBody
public List< Foo > findPaginated( 
 @RequestParam( "page" ) int page, @RequestParam( "size" ) int size, 
 UriComponentsBuilder uriBuilder, HttpServletResponse response ){
   
   Page< Foo > resultPage = service.findPaginated( page, size );
   if( page > resultPage.getTotalPages() ){
      throw new ResourceNotFoundException();
   }

eugenp

@Transactional( propagation = Propagation.REQUIRES_NEW )
public class Controller{
   ...
}
@Transactional( propagation = Propagation.MANDATORY )
public class Service{
   ...
}
@Transactional( propagation = Propagation.MANDATORY )
public class DAO{

eugenp

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="
   http://www.springframework.org/schema/beans 
   http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
   http://www.springframework.org/schema/tx
   http://www.springframework.org/schema/tx/spring-tx-3.1.xsd

eugenp

<bean id="txManager" class="org.springframework.orm.jpa.JpaTransactionManager">
   <property name="entityManagerFactory" ref="myEmf" />
</bean>
<tx:annotation-driven transaction-manager="txManager" />

eugenp

@Configuration
@EnableTransactionManagement
public class PersistenceJPAConfig{
   
   @Bean
   public LocalContainerEntityManagerFactoryBean entityManagerFactoryBean(){
      ...
   }
   
   @Bean

eugenp

@TransactionConfiguration( defaultRollback = true )
@Transactional
public class TransactionalIntegrationTest{
   ...
}

eugenp

<dependency>
   <groupId>org.springframework.data</groupId>
   <artifactId>spring-data-jpa</artifactId>
   <version>1.0.2.RELEASE</version>
</dependency>